A marine side thruster

Abstract

The utility model relates to ship power technology field especially is a kind of ship side pushing device, including protective cover, protective cover outer wall is equipped with adjusting motor, biaxial screw rod is movably connected in protective cover inner wall, adjusting motor output end is fixedly connected with biaxial screw rod one end, biaxial screw rod outer wall is equipped with adjusting plate with screw thread, adjusting plate two sides movably connected have roller shaft, lifting platform is provided in protective cover inside, hollow chamber is seted up in lifting platform inside, linkage groove is seted up in hollow chamber inner wall, driving cavity is seted up in lifting platform inside, lifting platform bottom is fixedly connected with bottom plate, driving assembly is seted up in driving cavity inside, driving assembly includes shell, double-head motor is installed in shell inside, double-head motor output end is fixedly connected with driving shaft, driving shaft one end is fixedly connected with driving bevel gear, driving paddle is seted up in driving cavity inside, driving paddle one end is fixedly connected with rotating shaft.The utility model reduces the risk of damage of driving paddle, prolongs the service life of equipment, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of marine propulsion, and in particular to a ship's side thruster. Background Technology

[0002] A ship's side thruster is an important auxiliary propulsion device installed on a ship. It is usually located in a transverse tunnel at the bow or stern and generates lateral thrust by driving the propeller blades to rotate. This helps the ship to obtain better maneuverability when berthing or leaving the dock, turning, or sailing at low speeds, and improves the ship's maneuverability in complex water environments.

[0003] The core components of existing side thrusters, such as the propeller, are always submerged in water. This not only increases water resistance during ship navigation, affecting the ship's speed and energy efficiency, but also makes them susceptible to impacts from floating objects, reefs, and other objects, leading to deformation and damage of the propeller blades. This can even affect the normal operation of the entire side thruster, increasing equipment maintenance costs and posing safety hazards to the ship. Utility Model Content

[0004] In view of this, the present invention provides a ship side thruster, the main technical problem to be solved is that the core components of the existing side thruster, such as the drive propeller, are always in the water. This not only increases water resistance during ship navigation, affecting the ship's speed and energy consumption efficiency, but also makes it susceptible to impacts from floating objects, reefs and other objects due to long-term immersion in water. This can lead to deformation and damage of the drive propeller blades, and may even affect the normal operation of the entire side thruster, increasing equipment maintenance costs and safety hazards to ship operation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a ship's side thruster includes a protective cover. An adjusting motor is installed on the outer wall of the protective cover, and a bidirectional lead screw is movably connected to the inner wall of the protective cover. The output end of the adjusting motor is fixedly connected to one end of the bidirectional lead screw. Two adjusting plates are threaded onto the outer wall of the bidirectional lead screw. Rollers are movably connected to both sides of each adjusting plate. A lifting platform is provided inside the protective cover. A hollow cavity is formed inside the lifting platform, and multiple linkage grooves are formed on the inner wall of the hollow cavity. The rollers are located inside the linkage grooves. The lifting platform... The device has an internal drive chamber. A base plate is fixedly connected to the bottom of the lifting platform. A drive assembly is installed inside the drive chamber. The drive assembly includes a housing. A dual-head motor is installed inside the housing. A drive shaft is fixedly connected to the output end of the dual-head motor. A drive bevel gear is fixedly connected to one end of the drive shaft. Two drive paddles are installed inside the drive chamber. A rotating shaft is fixedly connected to one end of each drive paddle. The rotating shaft extends into the housing and is fixedly connected to a driven bevel gear. The driven bevel gear meshes with the drive bevel gear. A positioning ring is fixedly connected to the outer wall of the rotating shaft. The positioning ring is located outside the housing.

[0006] By adopting the above technical solution, the flexible extension and retraction of the propeller is achieved, which not only meets the side thrust requirements but also reduces sailing resistance and protects the propeller.

[0007] As a further description of the above technical solution:

[0008] A support plate is fixedly connected to the inner wall of the drive cavity, and the rotating shaft is located inside the support plate.

[0009] By adopting the above technical solution, the support plate enhances the stability of the shaft and ensures that the drive propeller operates smoothly and reliably.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the housing is provided with a lip seal ring, and there are two lip seal rings. The lip seal rings are located at the contact point between the rotating shaft and the housing.

[0012] By adopting the above technical solution, the lip seal effectively prevents water from seeping into the housing and protects the internal motor and gear components.

[0013] As a further description of the above technical solution:

[0014] A first sealing plate is fixedly connected to the rear side of the outer casing by bolts, and a first sealing gasket is provided between the first sealing plate and the rear side of the outer casing.

[0015] By adopting the above technical solution, the first sealing plate and the sealing gasket work together to further improve the waterproofness and ease of maintenance of the outer casing.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the protective cover is fixedly connected with a limit rod, and there are two limit rods, both of which pass through the two adjustment plates.

[0018] By adopting the above technical solution, the limit rod ensures the linear motion accuracy of the adjusting plate and avoids the bidirectional lead screw jamming.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the protective cover has a limit groove, and there are multiple limit grooves. The outer wall of the lifting platform is fixedly connected to a limit block, and there are multiple limit blocks. The multiple limit blocks are located inside the multiple limit grooves respectively.

[0021] By adopting the above technical solution, the cooperation between the limit block and the limit groove makes the movement of the lifting platform more stable and prevents deviation.

[0022] As a further description of the above technical solution:

[0023] The top of the protective cover has an installation groove, and a second sealing plate is fixedly connected to the inside of the installation groove by bolts. A second sealing gasket is provided between the second sealing plate and the installation groove.

[0024] By adopting the above technical solution, the second sealing plate and sealing gasket enhance the sealing of the top of the protective cover, preventing water ingress.

[0025] As a further description of the above technical solution:

[0026] The outer wall of the protective cover is fixedly connected to a fixing plate, and there are multiple fixing plates. The outer wall of the protective cover is provided with a third sealing gasket.

[0027] By adopting the above technical solution, the fixing plate and the third sealing gasket ensure that the device is firmly connected to the hull and is waterproof and reliable.

[0028] By employing the above technical solution, the ship side thruster of this utility model has at least the following beneficial effects:

[0029] 1. Compared with existing technologies, this ship's side thruster, through the linkage design of the lifting platform and the drive assembly, achieves the retractable function of the drive propeller, reducing navigation resistance and protecting core components. By adjusting the motor to drive the bidirectional lead screw to rotate, two adjusting plates move in opposite directions. Rollers on the adjusting plates are embedded in the linkage groove of the lifting platform, converting horizontal movement into vertical lifting of the platform, thereby controlling the extension or retraction of the drive propeller. When the ship does not require lateral thrust, the drive propeller can be completely retracted into the protective cover, avoiding prolonged immersion in water, effectively reducing water resistance during navigation, and improving the ship's navigation efficiency and energy utilization. Simultaneously, the drive propeller is protected by the protective cover when not in use, preventing collisions with floating objects or reefs in the water, reducing the risk of damage, extending equipment lifespan, and reducing maintenance costs.

[0030] 2. Compared with existing technologies, this ship side thruster device adopts a multi-stage sealing design, including a lip seal ring, a first sealing gasket, a second sealing gasket, and a third sealing gasket. These are respectively used at the contact point between the shaft and the outer casing, the rear sealing plate of the outer casing, the mounting groove on the top of the protective cover, and the connection point between the protective cover and the hull. This effectively prevents water from seeping into the interior and ensures the safe operation of the drive components. Furthermore, a limit rod penetrates the adjusting plate, and the cooperation between the limit block and the limit groove ensures the stability of the lifting platform during movement, avoiding skewness or jamming. This guarantees the accuracy and reliability of the propeller extension and retraction. This design enhances both the sealing performance of the device and the overall structural stability, making it suitable for long-term use in complex aquatic environments. Attached Figure Description

[0031] Figure 1 This is a first-view schematic diagram of the overall structure of a ship side thruster proposed in this utility model.

[0032] Figure 2 This is a schematic diagram of a protective cover and a second sealing plate for a ship's side thruster proposed in this utility model;

[0033] Figure 3 This is a schematic diagram of the internal components of the protective cover of a ship's side thruster proposed in this utility model;

[0034] Figure 4 This is a schematic diagram of the lifting platform of a ship's side thruster proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the regulating motor and regulating plate of a ship's side thruster proposed in this utility model;

[0036] Figure 6 This is a schematic diagram of the interior of the outer shell of a ship's side thruster proposed in this utility model;

[0037] Figure 7This is a schematic diagram of the drive assembly of a ship's side thruster proposed in this utility model;

[0038] Figure 8 This is a schematic diagram of the outer shell and the first sealing plate of a ship's side thruster proposed in this utility model;

[0039] Figure 9 This is a schematic diagram of the overall structure of a ship side thruster proposed in this utility model from a second perspective.

[0040] Legend:

[0041] 1. Protective cover; 2. Adjusting motor; 3. Two-way lead screw; 4. Adjusting plate; 5. Roller; 6. Lifting platform; 7. Hollow cavity; 8. Linkage groove; 9. Drive cavity; 10. Base plate; 11. Drive assembly; 1101. Outer shell; 1102. Dual-head motor; 1103. Drive shaft; 1104. Drive bevel gear; 1105. Drive paddle; 1106. Driven bevel gear; 1107. Positioning ring; 12. Support plate; 13. Lip seal ring; 14. First sealing plate; 15. First sealing gasket; 16. Limiting rod; 17. Limiting groove; 18. Limiting block; 19. Mounting groove; 20. Second sealing plate; 21. Second sealing gasket; 22. Fixing plate; 23. Third sealing gasket. Detailed Implementation

[0042] Reference Figure 1-9 This utility model provides a ship side thruster device, comprising a protective cover 1, an adjusting motor 2 mounted on the outer wall of the protective cover 1, a bidirectional lead screw 3 movably connected to the inner wall of the protective cover 1, the output end of the adjusting motor 2 being fixedly connected to one end of the bidirectional lead screw 3, an adjusting plate 4 threadedly connected to the outer wall of the bidirectional lead screw 3, and two adjusting plates 4, each with a roller 5 movably connected to both sides; a lifting platform 6 provided inside the protective cover 1, a hollow cavity 7 opened inside the lifting platform 6, a linkage groove 8 opened on the inner wall of the hollow cavity 7, and multiple linkage grooves 8, with the roller 5 located inside the linkage groove 8; a driving cavity 9 opened inside the lifting platform 6, and a base plate 10 fixedly connected to the bottom of the lifting platform 6; and the inner... The part is provided with a drive assembly 11, which includes a housing 1101. A dual-head motor 1102 is installed inside the housing 1101. The output end of the dual-head motor 1102 is fixedly connected to a drive shaft 1103. One end of the drive shaft 1103 is fixedly connected to a drive bevel gear 1104. A drive paddle 1105 is provided inside the drive cavity 9. There are two drive paddles 1105. One end of the drive paddle 1105 is fixedly connected to a rotating shaft. The rotating shaft extends into the inside of the housing 1101 and is fixedly connected to a driven bevel gear 1106. The driven bevel gear 1106 meshes with the drive bevel gear 1104. A positioning ring 1107 is fixedly connected to the outer wall of the rotating shaft. The positioning ring 1107 is located outside the housing 1101.

[0043] A support plate 12 is fixedly connected to the inner wall of the drive cavity 9, and the rotating shaft is located inside the support plate 12.

[0044] The outer wall of the housing 1101 is provided with a lip seal 13, and there are two lip seals 13. The lip seals 13 are located at the contact point between the rotating shaft and the housing 1101.

[0045] A first sealing plate 14 is fixedly connected to the rear side of the outer casing 1101 by bolts, and a first sealing gasket 15 is provided between the first sealing plate 14 and the rear side of the outer casing 1101.

[0046] The inner wall of the protective cover 1 is fixedly connected with a limit rod 16, and there are two limit rods 16, both of which pass through the two adjusting plates 4.

[0047] The inner wall of the protective cover 1 is provided with a limiting groove 17, and there are multiple limiting grooves 17. The outer wall of the lifting platform 6 is fixedly connected with a limiting block 18, and there are multiple limiting blocks 18. The multiple limiting blocks 18 are located inside the multiple limiting grooves 17 respectively.

[0048] The top of the protective cover 1 is provided with a mounting groove 19. The interior of the mounting groove 19 is fixedly connected to a second sealing plate 20 by bolts. A second sealing gasket 21 is provided between the second sealing plate 20 and the mounting groove 19.

[0049] The outer wall of the protective cover 1 is fixedly connected with a fixing plate 22, and there are multiple fixing plates 22. The outer wall of the protective cover 1 is provided with a third sealing gasket 23.

[0050] Working principle: When the ship needs lateral thrust, the regulating motor 2 starts, driving the double-acting lead screw 3 to rotate, causing the two regulating plates 4 to move linearly in opposite directions along the limit rod 16. The rollers 5 on the regulating plates 4 are embedded in the linkage groove 8 of the lifting platform 6, converting the linear motion into the vertical lifting of the lifting platform 6, thereby pushing the drive propeller 1105 out of the protective cover 1 and into the water. Subsequently, the dual-head motor 1102 drives the drive bevel gear 1104 to rotate through the drive shaft 1103. The drive bevel gear 1104 meshes with the driven bevel gear 1106, causing the shaft to drive the two drive propellers 1105 to rotate synchronously, generating lateral thrust. The positioning ring 1107 and The lip seal 13 prevents water from seeping into the outer casing 1101. When the side thrust device is not in use, the adjusting motor 2 reverses, the double-acting screw 3 drives the adjusting plate 4 to reset, the roller 5 moves along the linkage groove 8, causing the lifting platform 6 to rise, and the drive propeller 1105 to retract into the protective cover 1. The bottom plate 10 seals the bottom of the protective cover 1. The first sealing plate 14 and the second sealing plate 20 work together with the sealing gasket to ensure waterproofing. The fixing plate 22 fixes the device to the hull. The limiting block 18 works with the limiting groove 17 to ensure the stable movement of the lifting platform 6. The third sealing gasket 23 enhances the sealing performance of the protective cover 1. This design can provide thrust when needed and reduce resistance and protect the drive propeller 1105 during navigation.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ship's side thruster, comprising a protective cover (1), characterized in that: An adjusting motor (2) is installed on the outer wall of the protective cover (1). A bidirectional lead screw (3) is movably connected to the inner wall of the protective cover (1). The output end of the adjusting motor (2) is fixedly connected to one end of the bidirectional lead screw (3). An adjusting plate (4) is threadedly connected to the outer wall of the bidirectional lead screw (3). There are two adjusting plates (4). Rollers (5) are movably connected to both sides of the two adjusting plates (4). A lifting platform (6) is provided inside the protective cover (1). A hollow cavity (7) is opened inside the lifting platform (6). A linkage groove (8) is opened on the inner wall of the hollow cavity (7). There are multiple linkage grooves (8). The roller (5) is located inside the linkage groove (8). A driving cavity (9) is opened inside the lifting platform (6). A base plate (10) is fixedly connected to the bottom of the lifting platform (6). A driving mechanism is provided inside the driving cavity (9). The drive assembly (11) includes a housing (1101), inside which a dual-head motor (1102) is installed. The output end of the dual-head motor (1102) is fixedly connected to a drive shaft (1103). One end of the drive shaft (1103) is fixedly connected to a drive bevel gear (1104). The drive cavity (9) is provided with a drive paddle (1105), and there are two drive paddles (1105). One end of the drive paddle (1105) is fixedly connected to a rotating shaft. The rotating shaft extends into the interior of the housing (1101) and is fixedly connected to a driven bevel gear (1106). The driven bevel gear (1106) meshes with the drive bevel gear (1104). A positioning ring (1107) is fixedly connected to the outer wall of the rotating shaft. The positioning ring (1107) is located outside the housing (1101).

2. The ship's side thruster according to claim 1, characterized in that: The inner wall of the drive cavity (9) is fixedly connected to a support plate (12), and the rotating shaft is located inside the support plate (12).

3. A ship's side thruster according to claim 1, characterized in that: The outer wall of the outer shell (1101) is provided with a lip seal (13), and there are two lip seals (13). The lip seals (13) are located at the contact point between the rotating shaft and the outer shell (1101).

4. A ship's side thruster according to claim 1, characterized in that: The rear side of the outer shell (1101) is fixedly connected to a first sealing plate (14) by bolts, and a first sealing gasket (15) is provided between the first sealing plate (14) and the rear side of the outer shell (1101).

5. A ship's side thruster according to claim 1, characterized in that: The inner wall of the protective cover (1) is fixedly connected with a limiting rod (16), and there are two limiting rods (16), both of which pass through the two adjusting plates (4).

6. A ship's side thruster according to claim 1, characterized in that: The inner wall of the protective cover (1) is provided with a limiting groove (17), and there are multiple limiting grooves (17). The outer wall of the lifting platform (6) is fixedly connected with a limiting block (18), and there are multiple limiting blocks (18). The multiple limiting blocks (18) are respectively located inside the multiple limiting grooves (17).

7. A ship's side thruster according to claim 1, characterized in that: The top of the protective cover (1) is provided with an installation groove (19), and a second sealing plate (20) is fixedly connected inside the installation groove (19) by bolts. A second sealing gasket (21) is provided between the second sealing plate (20) and the installation groove (19).

8. A ship's side thruster according to claim 1, characterized in that: The outer wall of the protective cover (1) is fixedly connected to a fixing plate (22), and there are multiple fixing plates (22). The outer wall of the protective cover (1) is provided with a third sealing gasket (23).

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